Multi-channel water sample collection device

Abstract

The utility model discloses a multichannel water sample collecting device which comprises a fixing frame, a plurality of automatic water sample collecting units and a control cabin, the plurality of automatic water sample collecting units and the control cabin are fixed on the fixing frame, and the control cabin controls the automatic water sample collecting units to complete water sample collecting work underwater. The automatic water sample collecting unit comprises a water sample collecting module and a driving motor module, the water sample collecting module comprises a sampling barrel, a three-way connector, a push rod and a piston, the bottom end of the push rod penetrates through an upper through hole of the sampling barrel to be connected with the piston in the sampling barrel, the piston is peripherally and hermetically connected with the sampling barrel, and an upper vertical connector of the three-way connector is communicated with a lower through hole of the sampling barrel; the driving motor module is connected with the top end of the push rod and drives the push rod to move up and down, the structure is simple and flexible, the integration degree is high, the maintenance cost is low, and multiple times of sampling can be automatically completed.

Description

Technical fields:

[0001] This utility model belongs to the technical field of underwater water sampling devices, specifically relating to an underwater multi-channel water sampling device. Background technology:

[0002] Oceans cover 70% of the Earth's surface, serving as the cradle of life and a vital resource for human sustainable development. Therefore, seawater quality testing is a crucial means of addressing this issue. Seawater quality testing not only helps assess water quality conditions, ensuring compliance with ecological and human standards, but also enables the timely detection of water quality problems, protecting marine biodiversity and maintaining ecological balance. Simultaneously, it is essential for safeguarding human health, ensuring the safety of seawater in recreational, fishery, and drinking water sources. Furthermore, seawater quality testing data provides scientific evidence for official agencies and relevant institutions, supporting the development of sound marine management policies. Existing technologies disclose related underwater sampling devices. For example, patent CN221925768U discloses a seawater sampling device that uses a tow rope on a boat to pull a sampling tube to sample water at different depths. Patent CN119749907A discloses a UAV-based seawater sampling device and sampling control method, including a UAV, a towing device, a liquid storage device, and a sampling sub-device. The sampling sub-device is raised and lowered and fixed below the UAV by the towing device. The sampling sub-device is used to descend to a designated area of ​​seawater to collect seawater samples. The liquid storage device is mounted on the UAV and collects and stores samples from the sampling sub-device through a liquid collection tube. The liquid storage device has multiple partitions, and water samples collected at different depths by the sampling sub-device are stored in different partitions. Although both patents can achieve rapid sampling at different depths at a specific location, the sampling unit can only perform one sampling after being launched into the water, and cannot perform multiple samplings. Therefore, this application provides a multi-channel water sampling device that can perform multiple samplings after a single launch. Utility Model Content:

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a multi-channel water sample collection device.

[0004] To achieve the above objectives, the present invention relates to a multi-channel water sample collection device, which includes a fixed frame, an automatic water sample collection unit, and a control cabin. Multiple automatic water sample collection units and the control cabin are fixed on the fixed frame, and multiple automatic water sample collection units are connected to the control cabin. The control cabin controls the automatic water sample collection units to complete the water sample collection work underwater.

[0005] The automatic water sample collection unit of this utility model includes a water sample collection module and a drive motor module. The water sample collection module includes a sampling tube, a three-way interface, a push rod, and a piston. The bottom end of the push rod passes through the upper through hole of the sampling tube and connects to the piston inside the sampling tube. The piston is circumferentially sealed to the sampling tube. The upper vertical direct port of the three-way interface is connected to the lower through hole of the sampling tube. A one-way valve is installed in the lower vertical direct port of the three-way interface. A plug is detachably fixed at the horizontal interface of the three-way interface. The drive motor module is connected to the top of the push rod and drives the push rod to move up and down.

[0006] The automatic water sample collection unit also includes a swing arm, a limiting lever, and a fixing clamp. The water sample collection module also includes a spring. The water sample collection module and the drive motor module are fixed on the upper and lower fixing clamps. A blocking part is set at the top of the push rod. The spring is wrapped around the push rod, with its upper end abutting against the lower side of the blocking part and its lower end abutting against the upper part of the collection tube. The output end of the drive motor module is connected to one end of the swing arm, driving the swing arm to rotate. A limiting lever is set at the free end of the swing arm. When the water sample collection module is in the triggered state, the free end of the swing arm is embedded in the lower side of the limiting lever, and the top of the push rod abuts against the lower side of the swing arm. The spring is in a compressed state. The bottom of the push rod pushes the piston to the bottom of the sampling tube. The swing arm rotates, and the water sample collection module changes from the triggered state to the ready state. The push rod drives the piston to move to the top of the sampling tube, and the water sample enters the sampling tube.

[0007] The drive motor module of this utility model includes a front cover, a cylinder, a rear cover, a rotating shaft, a coupling, a motor, a motor fixing plate, a circuit board, and a through-chamber component. The front cover and the rear cover are circumferentially sealed to the front and rear openings of the cylinder, respectively. The motor is fixed to the bottom of the front cover through the motor fixing plate. The rotating shaft passes through the through hole in the middle of the front cover and is rotatably sealed to the front cover. One end of the rotating shaft is connected to the swing arm, and the other end is connected to the output rotating shaft of the motor through the coupling. The circuit board is fixed on the rear cover. The through-chamber component is sealed and fixed in the through hole in the middle of the rear cover. The cable connected to the motor passes through the through-chamber component and is connected to the control compartment.

[0008] The fixing frame involved in this utility model includes fixing plates and columns. At least three fixing plates are fixed to the columns from top to bottom to form a rectangular frame. Fixing holes are opened on the fixing plates, and the fixing holes correspond to the automatic water sample collection unit. The automatic water sample collection unit is fixed on the fixing holes.

[0009] Specifically, the control cabin is placed horizontally and fixed to a mounting plate at the bottom of the mounting frame via a mounting bracket, and the control cabin's cables are connected to the drive motor module's cables.

[0010] Compared with the prior art, this utility model has the following advantages: (1) The number of automatic water sample collection units can be adjusted according to actual needs. The device has a simple and flexible structure, is highly integrated, has low maintenance costs, and can complete automatic sampling; (2) It can be mounted on underwater robots and other underwater equipment to collect water samples in different water areas, or it can be used as a sampling unit of an unmanned underwater sampling device or a shipborne sampling device. After one descent, it can collect samples at different depths. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the multi-channel water sample collection device involved in this utility model.

[0012] Figure 2 This is a schematic diagram of the automatic water sample collection unit involved in this utility model.

[0013] Figure 3 This is a cross-sectional view of the water sample collection module involved in this utility model.

[0014] Figure 4 This is a cross-sectional view of the drive motor module involved in this utility model.

[0015] Figure 5 This diagram shows the preparatory state (left) and trigger state (right) of the automatic water sample collection unit involved in this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] It should be noted that in the following description, the terms "front" and "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0018] like Figure 1 As shown, the multi-channel water sampling device involved in this embodiment includes a mounting frame 1, automatic water sampling units 2, and a control cabin 3. Multiple automatic water sampling units 2 and the control cabin 3 are all fixed on the mounting frame 1. Multiple automatic water sampling units 2 are connected to the control cabin 3, which controls the automatic water sampling units 2 to complete water sampling underwater. Depending on actual needs, the control cabin 3 can control the automatic water sampling units 2 to complete water sampling individually underwater, or it can simultaneously control multiple automatic water sampling units 2 to perform water sampling together.

[0019] The automatic water sample collection unit 2 involved in this embodiment includes a water sample collection module 201 and a drive motor module 202. The water sample collection module 201 includes a sampling tube 2011, a three-way interface 2012, a push rod 2013, and a piston 2015. The bottom end of the push rod 2013 passes through the upper through hole of the sampling tube 2011 and is connected to the piston 2015 inside the sampling tube 2011. The piston 2015 is circumferentially sealed to the sampling tube 2011. The upper vertical direct opening of the three-way interface 2012 is connected to the lower through hole of the sampling tube 2011. A one-way valve is installed in the lower vertical direct opening of the three-way interface 2012. The one-way valve ensures that water can only flow into the sampling tube 2011 from the outside. The plug is detachably fixed at the horizontal interface of the three-way interface 2012. The drive motor module 202 is connected to the top end of the push rod 2013 and drives the push rod 2013 to move up and down to realize the collection and removal of water samples.

[0020] As one implementation, the automatic water sample collection unit 2 also includes a swing arm 203, a limiting lever 204, and a fixing clamp 205. The water sample collection module 201 also includes a spring 2014. The water sample collection module 201 and the drive motor module 202 are fixed on the upper and lower fixing clamps 205. A blocking part is provided at the top of the push rod 2013. The spring 2014 is wrapped around the push rod 2013, with its upper end abutting against the lower side of the blocking part and its lower end abutting against the upper part of the collection tube 2011. The output end of the drive motor module 202 is connected to one end of the swing arm 203, driving the swing arm 203 to rotate. A limiting lever 204 is provided at the free end of the swing arm 203 (the limiting lever 204 is fixed on the upper and lower fixing clamps 205). When the water sample collection module 201 is in the triggered state (on the upper fixing clamp 205), the free end of the swing arm 203 is embedded under the limiting plate 204, and the top of the push rod 2013 abuts against the lower side of the swing arm 203. The spring 2014 is in the compressed state, and the bottom of the push rod 2013 pushes the piston 2015 to the bottom of the sampling tube 2011. The swing arm 203 rotates, and the top of the push rod 2013 breaks free from the swing arm 203. The water sample collection module 201 changes from the triggered state to the ready state. Under the action of the spring 2014, the push rod 2013 drives the piston 2015 to move to the top of the sampling tube 2011, and the water sample enters the sampling tube 2011, completing the sampling. After collecting the water sample and reaching the shore, the plug is removed, and the push rod 2015 is pushed, and the water sample flows out from the horizontal interface.

[0021] The drive motor module 202 involved in this embodiment includes a front cover 2021, a cylinder 2022, a rear cover 2023, a rotating shaft 2024, a coupling 2025, a motor 2026, a motor fixing plate 2027, a circuit board 2028, and a through-hole component 2029. The front cover 2021 and the rear cover 2023 are circumferentially sealed to the front and rear openings of the cylinder 2022, respectively. The motor 2026 is fixed to the bottom of the front cover by the motor fixing plate 2027, and the rotating shaft... 2024 passes through the through hole in the middle of the front cover 2021 and is rotatably and sealed to the front cover 2021. One end of the rotating shaft 2024 is connected to the swing arm 203, and the other end is connected to the output rotating shaft 2024 of the motor 2026 via the coupling 2025. The circuit board 2028 is fixed on the rear cover 2023. The through-hole component 2029 is sealed and fixed in the through hole in the middle of the rear cover 2023. The cable connected to the motor 2026 passes through the through-hole component 2029 and connects to the control compartment 3. Specifically, the connection between the through-hole component 2029 and the rear cover 2023, the connection between the front cover and the rotating shaft, and the connection between the front and rear covers and the cylinder are all sealed with sealing rings.

[0022] Specifically, one end of the rotating shaft 2024 is fitted into the swing arm 203, and the swing arm 203 is pressed down with a POM pressure block and locked with screws.

[0023] The mounting frame 1 in this embodiment includes a mounting plate 101 and a column 102. At least three mounting plates 101 are sequentially fixed to the column 102 from top to bottom to form a rectangular frame. Mounting holes are provided on the mounting plates 101, corresponding to the automatic water sample collection unit 2, which is fixed in the mounting holes. Specifically, the water sample collection module 201 and the drive motor module 202 are embedded in the mounting holes, and the fixing clip 205 is fixed to the mounting plate 101 outside the mounting holes. The mounting plate 101 at the top or bottom of the mounting frame 1 is fixed to the underwater robot. The underwater robot carries the automatic water sample collection unit 2 to different sampling points and completes sampling sequentially.

[0024] Specifically, the control cabin 3 is fixed to the fixing plate 101 at the bottom of the fixing frame 1 by the fixing seat 4. The cable of the control cabin 3 is connected to the cable of the drive motor module 202. By controlling the rotation of the control motor 2026, the water sample collection module 201 is controlled to collect water samples.

Claims

1. A multi-channel water sampling device, characterized in that, It includes a fixed frame, automatic water sample collection units, and a control cabin. Multiple automatic water sample collection units and the control cabin are fixed on the fixed frame. Multiple automatic water sample collection units are connected to the control cabin, which controls the automatic water sample collection units to complete the water sample collection work underwater.

2. The multi-channel water sampling device according to claim 1, characterized in that, The automatic water sample collection unit includes a water sample collection module and a drive motor module. The water sample collection module includes a sampling tube, a three-way connector, a push rod, and a piston. The bottom end of the push rod passes through the upper through hole of the sampling tube and connects to the piston inside the sampling tube. The piston is circumferentially sealed to the sampling tube. The upper vertical port of the three-way connector communicates with the lower through hole of the sampling tube. A one-way valve is installed in the lower vertical port of the three-way connector. The plug is detachably fixed at the horizontal interface of the three-way connector. The drive motor module is connected to the top of the push rod and drives the push rod to move up and down.

3. The multi-channel water sampling device according to claim 2, characterized in that, The automatic water sample collection unit also includes a swing arm, a limiting lever, and a fixing clamp. The water sample collection module also includes a spring. The water sample collection module and the drive motor module are fixed on the upper and lower fixing clamps. A blocking part is set at the top of the push rod. The spring is wrapped around the push rod, with its upper end abutting against the lower side of the blocking part and its lower end abutting against the upper part of the collection tube. The output end of the drive motor module is connected to one end of the swing arm, driving the swing arm to rotate. A limiting lever is set at the free end of the swing arm. When the water sample collection module is in the triggered state, the free end of the swing arm is embedded in the lower side of the limiting lever, and the top of the push rod abuts against the lower side of the swing arm. The spring is in a compressed state. The bottom of the push rod pushes the piston to the bottom of the sampling tube. The swing arm rotates, and the water sample collection module changes from the triggered state to the ready state. The push rod drives the piston to move to the top of the sampling tube, and the water sample enters the sampling tube.

4. The multi-channel water sampling device according to claim 3, characterized in that, The drive motor module includes a front cover, a cylinder, a rear cover, a rotating shaft, a coupling, a motor, a motor mounting plate, a circuit board, and a through-chamber component. The front cover and the rear cover are circumferentially sealed to the front and rear openings of the cylinder, respectively. The motor is fixed to the bottom of the front cover via the motor mounting plate. The rotating shaft passes through the through hole in the middle of the front cover and is rotatably sealed to the front cover. One end of the rotating shaft is connected to the swing arm, and the other end is connected to the motor output shaft via the coupling. The circuit board is fixed to the rear cover, and the through-chamber component is sealed and fixed in the through hole in the middle of the rear cover. The cable connected to the motor passes through the through-chamber component and is connected to the control compartment.

5. The multi-channel water sampling device according to claim 1, characterized in that, The mounting frame includes mounting plates and columns. At least three mounting plates are fixed to the columns from top to bottom to form a rectangular frame. Mounting holes are made on the mounting plates, and the mounting holes correspond to the automatic water sample collection unit. The automatic water sample collection unit is fixed in the mounting holes.

6. The multi-channel water sampling device according to claim 5, characterized in that, The control cabin is placed horizontally and fixed to the mounting plate at the bottom of the mounting frame by a mounting bracket. The cables of the control cabin are connected to the cables of the drive motor module.

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